The Mac Tools 41-pc Dual Ratcheting Screw and Nut Driver Set, No. SBDR41SN, features a 3-in-1 screwdriver, T-handle, and stubby for versatility. Its dual ratcheting design delivers speed and power. It has a 45-tooth ratchet for strength and reliability. The tool offers traditional ratcheting action for high-speed screw driving. Technicians can use as power ratcheting T-handle for higher torque applications or use removable stubby cap when access is limited.